jump the fuel solenoid straight from the battery to test with full voltage.

Take the plunger out of the fuel solenoid if you're still not getting fuel (just to see if you can get fuel out the lines at the injectors). A mechanical failure of the fuel stop solenoid seems rare tho. It's just a magnetic thing, if you take the plunger out it has fuel all the time.

Took the pump off. Loosened the four head bolts one half turn at a time while tightening a longer bolt in the timing port. Did this little by little until I saw the oring. Cut that oring off and stretched the new oring over the head, into the groove for it. Then did reverse. Slowly tightening the four bolts and loosening the timing port bolt.

If the stop solenoid plunger is removed and you are showing fuel flowing through feed and return lines, and still you have no fuel spitting from the delivery valves, I would have to assume that something internal is not correct (e.g. snapped plunger).

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When you say you installed clear fuel lines,.. did you put one on the return line? Weird that air comes out of the front of the pump, even though you have a helper pump. Did you swap banjo bolts and put the "OUT" bolt on the front of the pump?

I just ran the clear lines from the inlet and outlet. With the electric pump running the fuel flows through and out the return line. However when I crank the motor over, 25 secs this morning, nothing comes out the ports on the head. Could the plunger still read on the timing dial and not deliver fuel?

Disassembly, cleaning and replacement of all the seals isn't a bad idea anytime one of the seals starts leaking- so don't feel bad about wanting to do that. A lot of crud could be inside the pump, too.

Maybe the spill ring got disconnected? ; I'm not sure of the odds of that being the problem.

Plunger could be snapped without the dial indicator showing it. It will still ride up and down with the camplate lifting it and the dial indicator exerting spring pressure to return the snapped part. It just wouldn't pump fuel because it would all leak out the break. You'd have to pull the head out very far for a camplate roller to fall out of place. The little shim at the end of the plunger is the concern. If that falls out of place, it can put uneven pressure on the plunger foot and snap the plunger.

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Use, abuse or ignorance of any information is at your own risk, confirmation or refutation is your own responsibility, no further 'proof' will be given, take it or leave it, YMMV,terms subject to change without notice, avoid contact with eyes or skin, contents known to cause cancer in California